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Tectonics of the Barents Sea Continental Edge 巴伦支海大陆边缘的构造

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(4)

E. Shipilov, S. Shkarubo

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Features of the glacial formations structure and bottom relief forms related to them according to seismoacoustic profiling data and their role in the decision of discussion issues of the quarterly cover formation of the Barents Sea 根据震声剖面资料探讨与之相关的冰川构造、构造和底起伏形态特征及其在决定巴伦支海季度盖层构造讨论问题中的作用

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(5)

A. Rybalko, M. Tokarev

{"title":"Features of the glacial formations structure and bottom relief forms related to them according to seismoacoustic profiling data and their role in the decision of discussion issues of the quarterly cover formation of the Barents Sea","authors":"A. Rybalko, M. Tokarev","doi":"10.29006/978-5-6045110-0-8/(5)","DOIUrl":"https://doi.org/10.29006/978-5-6045110-0-8/(5)","url":null,"abstract":"Hot questions in the modern Quaternary geology of the Arctic seas associated with their glaciation are discussed in this article. The questions of the history of the occurrence of the problem of shelf glaciation or “drift” accumulation of boulder-bearing sediments are considered in detail. The results of seismic-acoustic studies and their interpretation with the aim of seismic stratigraphic and genetic partition of the cover of loose sediments of Quaternary age are considered in detail. Arguments are presented in favor of the continental origin of glaciers (Novaya Zemlya, Ostrovnoy and Scandinavian), which in the late Neopleistocene spread to the shelf of the Barents Sea and occupied its surface to depths of 120−150 m. Further development of glaciation was already due to the expansion of the area of shelves glaciers. The facies zoning of glacial-marine deposits is estimated, which is related to the distance from the front of the glaciers. It is concluded that already at the end of the Late Pleistocene, most of the modern Barents Sea was free from glaciers and from the annual cover of pack ice. Data on the absence of the area distribution of frozen sediment strata within the modern Barents Sea shelf are presented.","PeriodicalId":140472,"journal":{"name":"THE BARENTS SEA SYSTEM","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117094291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Salt composition and biogenic elements in modern pore waters of the Barents Sea (1997–2019) 巴伦支海现代孔隙水盐组成及生物成因元素分析(1997-2019)

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(28)

A. Lein, M. Kravchishina, G. A. Pavlova, A. Chultsova, A. Novigatsky, A. Klyuvitkin, A. Savvichev

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Element composition of suspended particulate matter in the Barents sea 巴伦支海悬浮颗粒物的元素组成

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(21)

D. P. Starodymova, A. I. Kochenkova, M. Kravchishina

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Palinostratigraphy of glaciomarine and marine sedimentsof the Barents Sea 巴伦支海冰川海洋和海相沉积的古地层学

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(7)

O. Rudenko

{"title":"Palinostratigraphy of glaciomarine and marine sedimentsof the Barents Sea","authors":"O. Rudenko","doi":"10.29006/978-5-6045110-0-8/(7)","DOIUrl":"https://doi.org/10.29006/978-5-6045110-0-8/(7)","url":null,"abstract":"By combining the palynologic, lithologic and published geophysical data a stratigraphic division into three main sedimentary units representing major stages in the development of post-glacial sedimentary environments in the southeastern and central parts of the Barents Sea has been substantiated. Unit 3 presumably characterizes proglacial environments of the early deglaciation (tentatively older than 15 ka) and is represented by relatively fine-grained, dark grey sediment matrix with numerous coarse terrigenous clasts. The unit contains low in diversity and concentration pollen assemblage, which is dominated by reworked, mostly Mesozoic pollen and sparse dinocysts of a cryophylic species Islandinium var. minutum. Unit 2 represents later deglacial conditions (estimated ca 12-15 ka) and is composed of finely laminated, grey to brownish sandy/silty muds with coarse clasts interpreted as iceberg-rafted debris. It is characterized by pollen assemblage zone with a low concentration of plant remains, a significant proportion of reworked pre-Cenozoic microfossils and club mosses among spores as well as a high percentage of dwarfBetula, Poaceae and Artemisia Islandinium var. minutum dominates among the aquatic palynomorphs. Unit 1, younger than ca 12 ka, is composed of soft, olive-grey mud with traces of bioturbations and spots of hydrotroilite at the top or sandy-silty mud within the South-Novozemelskii Trough and sand with inclusions of pebbles and broken shells within the Kanin Plateau. Three pollen assemblage zones correspond to it. They are marked by a high percentage of birch and pine pollen, an increased share of pollen of spruce and alder, as well as Sphagnum mosses and ferns. Constant presence of sparse pollen of broad-leaved plants in combination with peak values of Operculodinium centrocarpum and Spiniferites sp. testify the enhancement of Atlantic water influence upon the studied regions.","PeriodicalId":140472,"journal":{"name":"THE BARENTS SEA SYSTEM","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114713468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Phytoplankton of the Вarents sea Вarents海的浮游植物

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(25)

L. Pautova

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The vertical structure of the water column according to optical data 根据光学数据得出水柱的垂直结构

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(19)

V. Burenkov, V. Artemiev

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Biogeochemical processes in the Barents sea 巴伦支海生物地球化学过程

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(23)

A. Lein, A. Savvichev

{"title":"Biogeochemical processes in the Barents sea","authors":"A. Lein, A. Savvichev","doi":"10.29006/978-5-6045110-0-8/(23)","DOIUrl":"https://doi.org/10.29006/978-5-6045110-0-8/(23)","url":null,"abstract":"Biogeochemical processes involving microorganisms play an important role in marine sedimentogenesis. The study of biogeochemical processes in the Barents Sea was carried out from 1997 with interruptions until 2019. Using a complex of geological-geochemical, microbiological, radioisotope and stable isotope methods, it was possible to obtain a quantitative estimate of the total abundance and biomass of microorganisms, rates of biogeochemical processes, methane content and organic matter suspended. In the course of work in four expeditions, it was found that in the surface (0–10 m) water column south of 74° N the magnitude of the total abundance and the biomass of microorganisms increased by 2019 by about 5 times compared to 1998. To the north, in colder waters, the total abundance and the biomass of organisms were lower than in the southern region of the sea. The methane concentration in the surface layer of the water column at the border with the atmosphere did not change much for 20 years (1976–1997) and increased noticeably from 1997 to 2017, from 3.3 to 15.8 nM. The increase in FFM, the biomass of organisms and the concentration of methane in the water column is associated with the melting of glaciers, with the release of organic matter of continental origin released from ice into the water. The results of the work indicate changes in the ecosystem of the Barents Sea.","PeriodicalId":140472,"journal":{"name":"THE BARENTS SEA SYSTEM","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129997739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Zooplankton the Barents Sea 巴伦支海的浮游动物

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(26)

E. Arashkevich

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Tables of integrated oceanological stations in the Barents Sea, performed onboard the R / V Akademik Mstislav Keldysh in 2015–2019 2015-2019年，在R / V Akademik Mstislav Keldysh上执行了巴伦支海综合海洋学站表

THE BARENTS SEA SYSTEM Pub Date : 2021-09-09 DOI: 10.29006/978-5-6045110-0-8/(40)

A. Klyuvitkin, A. Novigatsky

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